Home / 747,515.28-1,121,420.62-274,204.74

Finding the Fourth Proportional to 747,515.28, 1,121,420.62 and 274,204.74

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Solution

The fourth proportional to 747,515.28, 1,121,420.62 and 274,204.74 is: 411,361.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    747,515.28 : 1,121,420.62 = 274,204.74 : x
  2. Step 2: Convert to fraction form
    747,515.28/1,121,420.62 = 274,204.74/x
  3. Step 3: Cross multiply
    747,515.28x = 1,121,420.62 × 274,204.74
  4. Step 4: Simplify right side
    747,515.28x = 307,498,849,537.74
  5. Step 5: Solve for x
    x = 307,498,849,537.74/747,515.28
  6. Step 6: Final answer
    x = 411,361.29

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.